import matplotlib.pyplot as plt
import numpy as np


n = 1024
X = np.random.normal(0, 1, n)
Y = np.random.normal(0, 1, n)
T = np.arctan2(Y,X)

# plt.scatter(X,Y, s=75, c=T,alpha=0.5)
plt.scatter(np.arange(5), np.arange(5))
#
# plt.xlim((-1.5,1.5))
# plt.ylim((-1.5,1.5))
plt.xticks(())
plt.yticks(())

plt.show()